<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<diV>
    <input type="text" placeholder="1号" :value="info">
    <input type="text" placeholder="2号" v-model="msg">

    <p>{{info}}</p><p>{{msg}}</p>
</diV>
<script src="https://lf3-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue/2.6.14/vue.js"></script>
<script>
    let v = new Vue({
        el: "div",
        data: {
            info: "单项绑定",
            msg:"双向绑定"
        }
    });
</script>
</body>
</html>